Biamp Qt® Conference Room Edition Installation and Operations User manual

Brand: Biamp

Model: Qt® Conference Room Edition Installation and Operations

Category: Home audio sets

Type: User manual

This manual is also suitable for

Qt® Conference Room Edition

Qt® Conference Room Edition

A Speech Protection System Designed for Conference Rooms

Installation and Operations Guide

Table of Contents

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Using Sound Masking to Protect Privacy of Conference Rooms . . . . . . . . . . . . . . . . . . 7

Full Feature List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Planning the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Sound Masking Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Choosing Where to Install Emitters – What is an exposed wall? . . . . . . . . . . . . . . . . . . 9

Emitter spacing and ceiling height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Emitter Layout – Normal installation – Two Rows of Emitters . . . . . . . . . . . . . . . . . . . 10

Emitter Layout – When to Use Up to 4 Rows of Emitters . . . . . . . . . . . . . . . . . . . . . 11

Controller and Privacy Sign Layout . . . . . . . . . . . . . . . . . . . . . . . . 12

Options on How to Control the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Pre-wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Connection to Privacy Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Installing Qt Emitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Important Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Custom Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Important Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Installing the controller and privacy signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Controller Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Installing the Controller to the Back Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Mounting Options for the Privacy Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

System Conguration Via the Front Panel . . . . . . . . . . . . . . . . . . . . 25

System Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Set-up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Commissioning Ramp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Contact Closure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Paging / Music Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

System Acoustic Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Special Installation Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Error Codes and Clear Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Post-Installation Hando . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Zone Destination Record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Settings Record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Hole Cut Guide for Flush Mount Box . . . . . . . . . . . . . . . . . . . . . . . 37

Hole Cut Guide for Privacy Sign . . . . . . . . . . . . . . . . . . . . . . . . . .39

Addendum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Safety

Important Safety Instructions:

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water. Indoor use only.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including

ampliers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades

with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide

blade or the third prong is provided for your safety. If the provided plug does not t into your outlet, consult

an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles,

and the point where they exit from the apparatus.

11. Only use attachments/accessories specied by the manufacturer.

12. Unplg this apparatus during lightning storms or when unused for long periods of time.

13. Refer all servicing to qualied service personnel. Servicing is required when:

• the apparatus has been damaged in any way

• liquid has been spilled or objects have fallen into the apparatus

• the apparatus has been exposed to rain or moisture

• the apparatusdoes not operate normally, or has been dropped

Packing List

The package includes:

• 1 Wall-mounted ST 1000 control module

• 1 4-gang adaptor plate for control module (used for 3-gang EU/UK boxes)

• 2 Automatically lighted privacy signs

• 2 1-gang adaptor plate for privacy signs

• 1 Power supply

• 8 Qt Emitters

• 7 16 ft audio cables

• 1 50 ft CAT-3 audio cable (home run)

• 2 50 ft two-conductor cables for privacy signs

• 1 Hole saw

• 4 Privacy sign 6/32” x 3/8” screws

• 8 Wall plate adapter 6/32” x 3/8” screws

• 4 Control module back panel 6/32” x 5/8” screws

Introduction

General

The Quiet Technology Conference Room Edition (QtCRE) from Cambridge Sound Management is a very cost-

eective solution to provide condential speech privacy for conference rooms, executive oces and suites,

boardrooms, and other sensitive spaces, to the immediate areas surrounding such spaces. For convenience

we may refer to all such rooms as conference rooms although that may not be their actual use. The system

comprises sound masking emitters and a lighted privacy sign placed immediately outside the private

conference room indicating when the system is operational, and a QtCRE controller and identical privacy sign

inside the room. The system does not place sound masking emitters inside the sensitive space itself.

Using Sound Masking to Protect Privacy of Conference Rooms

The acoustical attenuation performance of walls and other construction surrounding conference rooms can

vary widely. Even if high quality materials with high STC (sound transmission class) ratings are installed with

the intent of providing adequate sound attenuation, the expected result may not be achieved if the surrounding

space is suciently quiet. There may be sound leaks under doors or an HVAC that serves as a “sound tubes”

to adjacent spaces. Acoustical ceilings may be intended to provide good sound absorption but these same

lightweight tiles usually allow substantial speech sound to transmit through them to plenums above and back

down to oces adjacent the conference room. Return air grilles into plenums common to both the conference

room and exterior spaces are a frequent privacy issue. Background noise from a high quality building HVAC

system may be so low that it provides no signicant masking of speech sound escaping the conference room.

The common use of modern energy-ecient variable air volume HVAC systems can further exacerbate this

problem. Remedial work to the construction or HVAC system to improve privacy can be very costly, and even

then may not achieve satisfactory results. On the other hand a dedicated electronic sound masking system

around the conference room is cost eective and will provide condential privacy in almost all applications.

A conference room speech privacy protection system diers from typical oce-wide sound masking system in

three important ways:

1. The sound masking is applied only to a select small area – the exposed area around the perimeter of the

conference room.

2. Rather than operating 24/7 the QtCRE sound masking optionally may be turned on and o by users.

3. The resulting speech privacy protection status is indicated in the conference room and the entrance to it by

lighted signs.

The QtCRE sound masking levels can be calibrated using Cambridge Sound Management’s Qt100

Conguration iPad app, iMic microphone, and Bluetooth dongle (used to connect the iPad to the QtCRE unit)

or by a calibrated sound level meter with octave band lter set or analyzer. If using iPad app, set levels directly

below rst row of emitters.

Alternatively, levels may be set using the standard settings chart later in the manual, which will work ne for

most installations.

The QtCRE control module supports one zone of sound masking with 2 cable home runs. Each run supports

up to 60 emitters. The maximum coverage area for the QtCRE is 12,000 sq. ft. (1,115 m²) although typical

conference room speech privacy installations will not require coverage for such a large area.

Full Feature List

• Comes standard with: two automatically-lighted privacy signs with cables; one wall-mounted control module

(controller) and power supply; mounting brackets; eight emitters; seven 16-ft. (4.8m) audio cables; one 50-

ft. (15.2m) CAT distribution line (for the home run cable); and a hole saw

• Sound masking level adjustable in 1/2 dB steps

• Out of the box support for conference rooms with up to 40 ft. (12m) of exposed walls

• Optional add-on emitters for larger areas

• Simplied software for easy customer operation

• More advanced functions accessible by installer

• Premium, minimalist design style to t in with other conference room AV equipment

• Smooth ramp up and down sound masking level function to inhibit disruption outside the conference room

• Controllable from in-room Crestron and AMX control systems via contact closure; also oers 5V trigger

output

• Straightforward, low-impact installation

• Can be left on 24/7 or turned on as needed during condential meetings

• Less than 7 watts power consumption

• Power supply compatible with 100VAC to 240VAC power mains

Planning the System

Sound Masking Guidelines

This manual covers system installation of the controller, privacy signs and emitters, as well as masking level

setting and system maintenance. This introduction section discusses guidelines to ensure eective sound

masking coverage.

Generally the layout and calibration of emitters outside a conference room follow the standards for an open

oce design. It is important that the masking volume be set correctly to achieve the full eectiveness of the

system. If volume levels are set too low, speech privacy for the conference room occupants will be reduced

and people outside the conference room may nd audio leakage to be more distracting. If volume levels are

set too high, the masking sound itself could become a source of distraction.

In a given open oce design, including ceiling height, ceiling material, and workstation panel height, we can

dene the masking volume required to achieve “normal acoustic privacy,” between oces (i.e., normal voices

are audible but not easily understood). In an open oce environment, the target background sound level is

typically in the 45 - 48 dBA range, as measured 3 - 4 ft. (0.9 m) above oor level.

Ceiling Height Volume Level Intended Result (at listener ear level)

8 ft. (2.4m) 13 - 16 45 - 48 dBA

10 ft. (3m) 15 - 18 45 - 48 dBA

12 ft. (3.6m) 16 - 19 45 - 48 dBA

Choosing Where to Install Emitters – What is an exposed wall?

The goal of the system is to lower the listener’s speech-to-masking noise ratio to the point that people outside

cannot understand any speech originating in the conference room, even from persons using a raised voice.

Technically this is known as Condential Privacy or having an Articulation Index (AI) of 0.05 or below, and is

comparable to a Speech Transmission Index (STI) of 0.12 or below.

In order to achieve this goal, the emitters should be installed in rows parallel to all exposed walls of the

conference room, that is, along any wall party (common) to both the conference room and any adjacent oce

spaces, including open plan or private enclosed oces, corridors, storage or utility rooms, etc.

Emitter spacing and ceiling height

Spacing between emitters generally should follow the same rules as for other Cambridge Sound Management

(CSM) direct eld masking systems, i.e. should be not less than the ceiling height above the nished oor. The

English dimensions are based on America drop ceiling tile sizes (24x24”, 24x48”). The metric dimensions are

based on international tile sizes (300x300mm).

Ceiling Height Spacing

Ceiling heights less than 10 ft. (2.4m) 8 ft. spacing (2.4m)

Ceiling height is 10 ft. to 12 ft. (3m) 10 ft. spacing (3m)

Ceiling height is 12 ft. and above (3.6m) 12 ft. spacing (3.6m)

Emitter Layout – Normal installation – Two Rows of Emitters

Place the rst row adjacent any party wall between the conference room and exterior spaces at 1/2 the height

of the ceiling or less. For example, a 10 ft. (3m) ceiling, place the rst row no more than 4 or 5 ft. (1.2 to 1.5m)

from the wall. Continue both rows one spacing beyond both ends of party walls. However, for party walls that

are adjacent a narrow corridor or room, one row on or near the center is sucient.

Example: Conference room with one exposed wall – two rows of emitters.

Example: Conference room with two exposed walls and an open area extending away from the area in one

direction. One row of emitters in side cubicle area.

Emitter Layout – When to Use Up to 4 Rows of Emitters

Consider using 4 rather than 2 rows of emitters in the conditions described below. Four rows may not

be required if no speech is intelligible beyond the rst two rows. To test for this have a colleague go into

the conference room, close all doors, and read some material with raised voice as though addressing a

conference. Listen in the area beyond the rst two rows of emitters while the masking system is operating at

its set level. The test should be done after all room nishes and furniture are in place and when there are no

atypical noise sources operating near the masking coverage area. The test should be done when the oce

is unoccupied so that activity noise is absent. If the speech is not intelligible under these conditions, then two

rows are sucient.

Reasons to use 4 rows of emitters:

• Conference rooms with speech reinforcement or other amplied sound such as computer playback of

speech

• No plenum barrier above the conference room party wall

• Open ceiling shared by conference room and protected areas

• Glass or demountable partition party walls

• Unusually quiet exterior spaces (less than 38 dBA ambient)

• Highly sound reective (reverberant) spaces

Example: Installation with 3 rows of emitters.

Controller and Privacy Sign Layout

Options on How to Control the System

It is important to understand how the system will be used and controlled to decide the location of the controller

and privacy signs.

The controller unit is self-contained and can be operated by the end-user directly from the front panel. The set-

up features are hidden from the end user to prevent accidental changes.

The signs indicate that the system is fully on only when lit steadily. They blink while ramping up or down

(the gentle increase or decrease of sound level).

Optionally the system can also be controlled via contact closure (such as by an automation control system).

In this case the controller should be placed out of the way, such as in a closet or IT closet, to reduce any

confusion about the active control point. The system also features a nominal 5V trigger out for status

conrmation to a control system.

An external contact closure can also be used to allow control from a remote switch such as a light switch or

single-pole, single-throw (SPST) low voltage switch.

In an operating scenario in which contact closure is used, emergency cuto can only be achieved if the low

level is MUTE and CC ramp down time is 0.

Optionally the system may be installed similar to standard sound masking (which is normally on 24/7),

with the controller visible or hidden.

Placing the controller:

• In a place easy to reach for occupants of the room, such as near light switches near the room entrance, or

at a convenient place accessible during presentations.

• Can be visible or hidden, but remember people may not know how or where to operate it if it is completely

out of sight.

Placing the privacy signs:

• Two privacy signs are provided, one for the room occupants and the other for people outside the room.

Typically one sign is mounted inside the conference room to alert the occupants to status and the other is

mounted outside conference room, adjacent to the main door.

• Use of both signs is not required or both may be installed inside or outside the room. Coordinate with

Owner.

Installation

Pre-wiring

Home Run

The 50’ CAT distribution line supplied with the base kit should be sucient as the home

run for almost all installations. It may be replaced by a longer CAT cable to the rst emitter

without excessive loss or impact privacy signal level dierence between the rst and last

emitters on the line. Theoretically a CAT coupler and additional cable could be used rather

than a longer home run but this is not the preferred method due to the coupler most likely

being located in an inaccessible and/or undocumented location, possibly complicating

future servicing.

Emitter Cable (Interconnects) Conguration

The interconnects should be connected the same as in a conventional CSM Qt masking

system, i.e. in a series serpentine layout. This will assure that adjacent emitters are on

dierent channels to minimize any phase interference issues.

CSM’s Quiet Technology uses four distinct non-correlated sounds that repeat every fourth emitter

automatically. The home run from the controller to the rst emitter may be concealed in a wall stud space.

How CSM Emitter Cabling Works – Homeruns and Daisy Chaining

Emitters on each line are daisy-chained in series during installation. Each emitter has passive internal logic

which rolls over its input channel to a dierent channel at its output port. Thus every fourth emitter is actually

operated in parallel with the rst.

Four Channel

Distribution

Power Supply

In most cases the 24V power supply will need to be located remotely, with a cable run from the power supply to

the controller. In some cases a wall plate such as the Vanco 120614X permits in-wall running of the power wire

to an AC plug on the exterior of the wall.

The power supply wire may be extended using appropriate cable and connectors. The cable should be UL

rated and plenum rated if routed through any plenum space.

Audio Input

Optionally the QtCRE includes an audio input usable for music or paging. The input is fully functional

regardless of front panel or contact closure control. Therefore, the system may be used for music or paging

even when masking is muted or o.

Contact Closure Input

This terminal can be used either for remote triggering by a Crestron, AMX, or other control system. In either

case, the contract closure takes priority over the front panel control settings. Contact closure ramp speed can

be set separately from front panel control ramp speed.

Trigger Output

The trigger output provides nominally 5VDC when the system is operating at Normal level, for use in triggering

other devices or to provide an acknowledgment signal back to an external automation system like a Crestron.

Note that upon initiation of a downward ramp event, deactivation of the trigger signal will lag the completion

of the downward ramp by several seconds in addition to the ramp down time parameter congured on the

ST1000 control module. During a ramp-up to Normal operating level event, the full and consistent activation of

the trigger voltage may not be complete until the Normal operating level is reached. Control system programs

should be written to anticipate and accommodate this behavior.

Balanced Audio Input:

• Most often, but not always characteristic of paging systems.

• Connect signal wires to + and - at the input. Connect the shield to GND at the

audio source.

Unbalanced Audio Input:

• Typical of music systems.

• Mono Signals: Connect the mono signal wire to both L and R (split the wire) on the

block. Connect the ground wire to GND.

• Stereo Signals: Connect the respective signal wires to L and R on the block.

Connect the ground wire to GND.

Connection to Privacy Signs

Run a separate cable from the controller mounting location to each lighting location. Do not daisy chain signs

as this may cause the lights to be of dierent brightness. Two 50-ft. (15.2m) plenum rated cables are provided

with the kit.

Note that the small switch on the side of the controller must be set to the “up” position (closer to the top of the

case) for the lights to work. The “down” setting enables the external USB jack, used for rmware updates or for

the optional Bluetooth dongle supplied with the Qt100 iPad app.

Sign 1 +

GND -

Sign 2 +

GND -

Control +

GND -

NOTE: Wiring nomenclature is

located under the removable

terminal block connector.

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Installing Qt Emitters

Important Considerations

• Each run has a maximum of 60 emitters.

• Each run supports a maximum cable length of 1000 ft.

• Each home run cable attached to the control module should be labeled by Zone # and Run #. Adding

a logical name (e.g. Marketing, Private Oces) is suggested. In addition, ll out the “Zone Destination

Record” at the end of this Guide.

• The module has two identical outputs, Run 1 and Run 2. All emitters on Run 1 and Run 2 are controlled

equally.

• Each job-made cable should be manufactured according to ANSI/TIA/EIA Standard 568-B. See custom

cabling guidelines on page 18.

• Before installation, job-made cables should be tested with a LAN cable tester.

Installation

1. Set the masking output level to the maximum level of 30. (Set sound masking volume levels using either of

the front panel controls.)

2. Refer to the emitter layout and wiring diagram provided by the dealer for cable run connections.

3. Run home run cables from control module to the location of the rst emitter for all runs.

4. Gather all ceiling tiles (per layout drawing) that are to receive emitters. Use the supplied hole saw to cut

holes in designated tiles. Cut all tiles from the front. (Dierent types of emitter housings are available to

attach in areas where there are no suspended ceiling tiles.)

5. Push the emitter through the front of the hole in tile and secure it by pushing down and twisting the locking

ring at the back of the emitter.

NOTE:

• The “tombstone” hook on the back of each emitter is next to the INPUT jack.

• This can help you nd the INPUT jack by touch.

• To adjust for unexpected obstacles such as sprinkler heads, each emitter may be moved up

to 2 ft. (one tile or 0.6 m) in any direction.

6. Connect a run cable from the specied OUTPUT jack on the module to the INPUT jack of the rst emitter.

Listen to each emitter as it is connected. If you cannot hear its “whooshing” sound:

• Try a dierent emitter.

• Test all four previous cables for continuity and shorts. Repair any faulty cables.

• If a short is detected, the masking will shut o until the short is physically xed. The error on the control module will

remain until the error is cleared. (see Error Codes and Clearing Errors, page 31) Set the masking output level to the

maximum level of 30.

7. Connect the next OUTPUT cable to the emitter OUTPUT jack.

8. Run the cable to next designated tile specied on emitter layout and wiring diagram. Tie cables up to

structure or suspend from deck as required by local building code.

9. On the next emitter, connect this cable to the INPUT jack

10. Repeat Steps 4 through 9 for the remaining emitters on the home run.

DO NOT put the input cable into the output port of the emitter. If sound is only heard by putting the

cable in the output, there is a problem earlier in the cable run. Be sure to x any problems and hear

the “whooshing” sound before installing the next emitter.

NOTE:

• The input jack of each emitter bears this symbol and is located near the safety tie o.

• The output jack of each emitter bears this symbol.

Custom Cabling Guidelines

Important Considerations

1. Use solid conductor 24 AWG CAT-13 cable that meets local code requirements.

2. If the system is installed in a return air plenum, the cable must be plenum rated.

3. Shielding is not required. Unshielded twisted pair (UTP) cable is acceptable.

4. Snagless boots are not required.

5. RJ-45 plugs must use the “bent 3-tine” RJ-45 plugs intended for use with solid core CAT wire. Three-

tine plugs can be purchased at a hardware store and from most CAT cable suppliers. DO NOT USE

the “aligned two-tine” type intended for stranded wire, as they provide improper contact and may yield

intermittent system operation. The diagram below shows the cross section view of both types.

6. Field test each cable after fabrication with the RJ-45 connectors (before nal installation), using a standard

network LAN cable tester, to check for continuity, shorts, and 1:1 (straight through) connection.

Installing the controller and privacy signs

Installation of the controller requires separating the front panel from the rear of the case – simply done by

pulling one from the other. All installation options require attaching the case rear rst, then getting cables

attached to the controller, then snapping the controller into place.

Controller Mounting Options

• Best practices: If installing the controller on a wall known to have sound transmission issues into an

adjacent space, it is recommended to use surface mounting. Be careful to seal airtight any cabling holes to

minimize sound transmission. Avoid back-to-back mounting of electrical or other wall components within a

single stud space.

• Best practices: On walls separating the conference room from an area with masking, don’t use gang

boxes with big holes as these are prone to passing sound. Whenever feasible, don’t install the box on a

wall requiring masking protection as it may exacerbate sound transmission problems.

CORRECT

RJ-45 Connector with bent type

INCORRECT

RJ-45 Connector with aligned type

The controller may be mounted in one of several ways:

• Flush Mount with Box

• Surface Mount on Box

Flush Mount with Supplied Box

Cut hole in wall to dimensions x by x (use template) and run cables to this hole. After the cables have been run

to the hole in the wall, place the ush mount box in the wall (make sure up is actually up) and snap the four

clips that clamp to the back side of the drywall surface. Then attach the case rear to the wall adapter. During

installation it may be convenient to attach the wires to the tie-o point in the back of the box to prevent the

wires from falling back into the wall.

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4-gang electrical box (pre-installed or retrotted) – after the cables have been run to the box, use four supplied

screws to attach the wall plate adapter. (In the case of EU 3-gang boxes, use M3 or M3.5 screws as needed –

these are not included.) Then attach the system back to the wall adapter.

NOTE: The wall plate adaptor is ABS plastic and may be painted to match wall color. Use a standard

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Biamp Qt® Conference Room Edition Installation and Operations User manual

Brand: Biamp

Model: Qt® Conference Room Edition Installation and Operations

Category: Home audio sets

Type: User manual

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Qt® Conference Room Edition

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Biamp Qt® Conference Room Edition Installation and Operations User manual

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Biamp Qt® Conference Room Edition Installation and Operations User manual

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